How long for venipuncture to heal?

I can't seem to get a definitive answer on this one but it seems like a pretty easy question... hopefully you all can help me! how long does it take for a peripheral IV stick (a missed one) to heal up so that it can be attempted again? Or what about a site that ran its 72hr course and was discontinued (scheduled DC), how long before that site can be re-used?
Thanks!